About Sealant Flexibility
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About Paint and Protective Coatings
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Noncorrosive Silicone Sealants
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Also known as neutral-cure sealants, these won't discolor copper, brass, and concrete. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
Sealants that cannot be sold to California exceed local regulatory limits on VOCs (volatile organic compounds).
Container | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Cannot Be Sold To | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
832 | 10.1 | Cartridge | 50 min. | 24 hrs. | 420% | -25% to 25% | Soft (Durometer 35A) | -65° to 300° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Masonry | __ | 0000000 | 000000 | |
Loctite® Silicone | |||||||||||||
SI 5011 CL | 2.7 | Tube | 20 min. | 24 hrs. | 300% | Not Rated | Soft (Durometer 20A) | -75° to 400° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood | __ | Clear | 0000000 | 00000 |
SI 5011 CL | 10.1 | Cartridge | 20 min. | 24 hrs. | 300% | Not Rated | Soft (Durometer 20A) | -75° to 400° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood | __ | Clear | 0000000 | 00000 |
SI 5109 | 10.1 | Cartridge | 60 min. | 24 hrs. | 300% | Not Rated | Soft (Durometer 15A) | -75° to 600° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood | __ | Red | 0000000 | 00000 |
Permatex Silicone | |||||||||||||
81173 | 12.9 | Cartridge | 30 min. | 24 hrs. | 350% | Not Rated | Soft (Durometer 15A) | -75° to 450° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood | CA | Black | 0000000 | 00000 |
Silicone Sealants
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Made from silicone, these sealants are RTV (room-temperature vulcanizing). They’re non-sagging, so they won't drip from vertical and overhead surfaces.
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
When Dow Corning 700 requires a primer, for best results use PR-1200 on metal and PR-1205 on plastic.
Container | ||||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Specifications Met | Clarity | Choose a Color | Each | |
Dow Corning Silicone | ||||||||||||||
700 | 10.1 | Cartridge | 15 min. | 24 hrs. | 575% | -25% to 25% | Soft (Durometer 20A) | -75° to 350° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass | FDA Compliant 21 CFR 177.2600, NSF/ANSI 51, UL Recognized Component | __ | 000000 | 00000 | |
732 | 4.7 | Tube | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | Metal Metal to Plastic Metal to Glass Plastic Glass | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, NSF/ANSI 61, UL Listed | __ | 00000000 | 00000 | |
Loctite® Superflex Silicone | ||||||||||||||
SI 596 RD | 6.4 | Nozzle-Top Can | 1 hrs. | 24 hrs. | 300% | Not Rated | Soft (Durometer 18A) | -60° to 600° | Metal | __ | Opaque | Red | 00000000 | 00000 |
Momentive/GE Silicone | ||||||||||||||
RTV106 | 5.4 | Cartridge | 15 min. | 24 hrs. | 400% | -25% to 25% | Soft (Durometer 30A) | -55° to 400° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Red | 00000000 | 000000 |
RTV230 A/B | 13.5 | Syringe | 5 min. | 24 hrs. | 280% | -25% to 25% | Soft (Durometer 36A) | -55° to 400° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry | UL 94 HB | Opaque | White | 00000000 | 00000 |
Rutland 500ºF RTV High Heat Silicone | ||||||||||||||
76 | 2.7 | Tube | 10 min. | 24 hrs. | 500% | Not Rated | Soft (Durometer 25A) | -70° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Rubber Rubber to Glass Glass Masonry Wood | ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51 | __ | 00000000 | 00000 | |
76 | 10.3 | Cartridge | 10 min. | 24 hrs. | 500% | Not Rated | Soft (Durometer 25A) | -70° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Rubber Rubber to Glass Glass Masonry Wood | ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51 | __ | 00000000 | 00000 |
Low-Outgassing Silicone Sealants
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Compliant with ASTM E-595, these sealants produce almost no volatile materials in a vacuum. They’re made of silicone, so they’re RTV (room-temperature vulcanizing).
Elongation indicates flexibility—the higher the value is, the more a sealant can stretch.
Container | |||||||||||||
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Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | Specifications Met | For Joining | Color | Each | |
5.8 | Cartridge | 150 min. | 7 days | 420% | -25% to 25% | 600 | Durometer 36A (Medium Soft) | -200° to 500° | ASTM E595 | Metal Plastic Rubber Composites Glass | White | 0000000 | 0000000 |
Structural Oil- and Fuel-Resistant Sealants
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Impervious to the swelling effects of oils, fuels, and solvents, use this high-strength silicone sealant to assemble and repair fuel systems and tanks. Silicone forms a tough, rubbery, UV-resistant seal that remains flexible over time. It's non-sagging, so it won't drip from vertical and overhead surfaces. Also known as RTV (room-temperature vulcanizing).
Elongation and joint expansion/compression tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. This sealant is best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.
Container | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Color | Each | |
Dow Corning Silicone | |||||||||||||
730 FS | 3 | Tube | 12 min. | 24 hrs. | 200% | Not Rated | 300 | Medium Soft (Durometer 40A) | -70° to 350° | Metal, Plastic, Rubber, Composites, Masonry | White | 0000000 | 0000000 |
730 FS | 5.8 | Cartridge | 12 min. | 24 hrs. | 200% | Not Rated | 300 | Medium Soft (Durometer 40A) | -70° to 350° | Metal, Plastic, Rubber, Composites, Masonry | White | 0000000 | 000000 |
UV-Resistant Glass Sealants
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These sealants don't degrade in sunlight. Also known as glazing compounds, use these sealants to install glass in framing. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility. For joints between dissimilar materials and in environments with wide temperature fluctuation, choose a sealant with a higher elongation or joint compression/expansion tolerance.
Container | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | Specifications Met | For Joining | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
791 | 10.3 | Cartridge | 15 min. | 14 days | Not Rated | -50% to 50% | Soft (Durometer 25A) | -40° to 300° | ASTM C920 Type S Grade NS Class 50 | Metal Metal to Glass | 0000000 | 000000 | |
999A | 10.3 | Cartridge | 10 min. | 7 days | Not Rated | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | __ | Metal Metal to Glass | 0000000 | 0000 | |
Silicone | |||||||||||||
__ | 10.1 | Cartridge | 30 min. | 24 hrs. | 475% | -25% to 25% | Soft (Durometer 20A) | -75° to 400° | FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.2600, Fed. Spec. TT-S-001543A Class A, Fed. Spec. TT-S-00230C Type II Class A, NSF/ANSI 51 | Metal Metal to Glass Plastic Plastic to Glass Rubber Rubber to Glass Composites Composites to Glass Glass Wood Wood to Glass | 0000000 | 0000 |
Sealant Primers
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Prepare joints and surfaces to ensure proper sealant adhesion.
Container | |||||||
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Mfr. Model No. | Size | Type | Drying Time | For Use On | Choose a Color | Each | |
Dow Corning Primers | |||||||
P5200 | 12 fl. oz. | Bottle | 2 hrs. | Stainless Steel, Steel, Cast Iron, Galvanized Steel, ABS Plastic, Polycarbonate Plastic, Polystyrene Plastic, Polyurethane Rubber, PVC Plastic, Glass, CPVC Plastic, PETG Plastic, PVDF Plastic, Polyimide Plastic, EPDM Rubber, SBR Rubber, Ceramic, Masonry, Wood, Iron, Silicone Rubber, Galvanized Iron | 00000000 | 0000000 | |
PR-1200 | 10.9 fl. oz. | Bottle | 2 hrs. | Aluminum, Brass, Bronze, Copper, Stainless Steel, Steel, Titanium, Cast Iron, Galvanized Steel, ABS Plastic, Polycarbonate Plastic, Polystyrene Plastic, Polyurethane Rubber, PVC Plastic, Glass, CPVC Plastic, PETG Plastic, PVDF Plastic, Polyimide Plastic, EPDM Rubber, SBR Rubber, Ceramic, Masonry, Wood, Iron, Silicone Rubber, Galvanized Iron | 00000000 | 00000 | |
PR-1205 | 12.3 fl. oz. | Bottle | 2 hrs. | Aluminum, Stainless Steel, Steel, Cast Iron, Galvanized Steel, ABS Plastic, Polycarbonate Plastic, Polystyrene Plastic, PVC Plastic, CPVC Plastic, PETG Plastic, PVDF Plastic, Polyimide Plastic, Ceramic, Iron, Galvanized Iron | Yellow | 0000000 | 00000 |
High-Strength Concrete Joint Sealants
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Seal concrete joints in high-traffic areas—these sealants stand up to heavy wear and tear, such as steel wheel traffic. They're non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation. For high-wear applications, choose a harder sealant for the most abrasion resistance.
Container | For Max. Crack | ||||||||||||
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Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Wd. | Dp. | Temp. Range, °F | For Joining | Color | Each | |
Silicone | |||||||||||||
20 | Sausage Pack | 60 min. | 7 days | 1,000% | -50% to 100% | Medium Hard (Durometer 55A) | 1" | 1/2" | -20° to 300° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | Gray | 000000 | 000000 |
29 | Cartridge | 60 min. | 7 days | 1,000% | -50% to 100% | Medium Hard (Durometer 55A) | 1" | 1/2" | -20° to 300° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | Gray | 000000 | 00000 |
High-Strength Self-Leveling Concrete Joint Sealants
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Seal concrete joints in high-traffic locations—these sealants stand up to heavy wear and tear, such as steel wheel traffic. Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.
Silicone sealant is RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation. For high-wear applications, choose a harder sealant for the most abrasion resistance.
Container | For Max. Crack | ||||||||||||
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Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Wd. | Dp. | Temp. Range, °F | For Joining | Color | Each | |
Silicone | |||||||||||||
29 | Cartridge | 60 min. | 7 days | 1,000% | -50% to 100% | Soft (Durometer 20A) | 1" | 1/2" | -60° to 300° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | Limestone | 0000000 | 000000 |
HVAC Sealants
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Form flexible water-resistant seals on metal, plastic, and rubber joints in heating, ventilation, air conditioning, and refrigeration applications. These sealants are non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain.
Container | |||||||||||||
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Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | Specifications Met | For Joining | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
10.3 | Cartridge | 5 min. | 24 hrs. | 600% | -25% to 25% | 325 | Soft (Durometer 27A) | -40° to 350° | UL Listed, FDA Compliant 21 CFR 177.2600, UL 94 HB | Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Rubber Composites | 000000 | 000000 | |
Silicone | |||||||||||||
9.4 | Cartridge | 20 min. | 24 hrs. | Not Rated | -25% to 25% | Not Rated | Soft (Durometer 26A) | -60° to 400° | Fed. Spec. TT-S-001543A Class A, Fed. Spec. TT-S-00230C Class A | Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Rubber Composites | 0000000 | 0000 |
Primer for Dow Corning Sealant (16 fl. oz. Bottle) | 0000000 | Each | 000000 |
Two-Part Silicone Potting Compounds
Encase electronic assemblies in a layer of silicone for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They’re also known as RTV (room-temperature vulcanizing).
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Dry Time | ||||||||||||
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Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Each | |
Momentive/GE Compounds—Medium Soft | ||||||||||||
RTV11 | 16 | Thick Liquid | 90 min. | 24 | 515 | 0.29 | -65° to 400° | GSA A-A-56023A | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel | White | 00000000 | 0000000 |
Momentive/GE Compounds—Medium Hard | ||||||||||||
RTV60 | 16 | Thick Liquid | 2 hrs. | 24 | 450 | 0.31 | -65° to 500° | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel | Red | 00000000 | 000000 |
Ready-to-Use Silicone Potting Compounds
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No mixing required --these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing).
Potting compounds that cannot be sold to California exceed local regulatory limits on VOCs (volatile organic compounds).
Container | Dry Time | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Clarity | Color | Each | |
Dow Corning Compounds—Soft | ||||||||||||||
748 | 3 | Tube | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Opaque | Off-White | 000000000 | 000000 |
748 | 10 1/10 | Cartridge | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Opaque | Off-White | 000000000 | 00000 |